Chlorine Element Properties

Chlorine

p16
S
Sulfur
p17
Cl
Chlorine
p18
Ar
Argon
General
Name(Chlorine)
Symbol(Cl)
Number(17)
Group Number(17)
Group(Halogen)
Block(p)
Density(0.003214 g/cm3)
Atomic Weight(35.453 g/mol)
Atomic Volume(22.7 cm3/mol)
Discover(1774)


States
State(Gas)
Melting Point(171.6 K)
Boiling Point(239.11 K)
Triple Point(Nil)
Critical Point(416.9 K)
Heat of Fusion(6.406 kJ/mol)
Heat of Vaporization(20.41 kJ/mol)


Energies
First Ionization Energy(1251.1 kJ/mole)
Second Ionization Energy(2297.3 kJ/mole)
Third Ionization Energy(3821.8 kJ/mole)
Electronegativity(3.16)
Electron Affinity(349 kJ/mole)
Specific Heat(0.48 J/gK)
Heat Atomization(121 kJ/mole atoms)


Oxidation and Electrons
Shells(2,8,7)
Electron Configuration([Ne] 3s2 3p5)
Minimum Oxidation Number(-1)
Maximum Oxidation Number(7)
Minimum Common Oxidation Number(-1)
Maximum Common Oxidation Number(7)


Appearance and Characteristics
Crystal Structure(orthorhombic)
Characteristics(diatomic(Cl2), corrosive)
Color(greenish-yellow)
Uses(bleach (NaOCl), PVC pipe)
Hardness(mohs)
Toxicity(Yes)


Reactions
Reaction with Air(None)
Reaction with 6M HCl(mild, =>HOCl, Cl-)
Reaction with 15M HNO3(mild, =>HClOx, NOxCl, NOx)
Reaction with 6M NaOH(mild, =>OCl-, Cl-)


Other Forms
Number of Isotopes(2)
Hydride(HCl)
Oxide(Cl2O ClO2 Cl2O7)
Chloride(Cl2)


Radius
Atomic Radius(100 pm)
Ionic Radius (1+ ion)(Nil)
Ionic Radius (1- ion)(167 pm)
Ionic Radius (2+ ion)(Nil)
Ionic Radius (2- ion)(Nil)
Ionic Radius (3+ ion)(Nil)


Conductivity
Thermal Conductivity(0.01 J/m-sec-deg)
Electrical Conductivity(0 1/mohm-cm)
Polarizability(2.2 A3)


Abundance
Source(Halite, brine (misc))
Relation Abundance Solar System(3.719 log)
Abundance Earths Crust(2.1 log)


p16
S
Sulfur
p17
Cl
Chlorine
p18
Ar
Argon

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